[1] Norwegian Radium Hosp, Dept Genet, N-0310 Oslo, Norway
[2] Univ Oslo, Ulleval Hosp, Dept Oncol, N-0407 Oslo, Norway
[3] Univ Oslo, Ulleval Hosp, Dept Surg, N-0407 Oslo, Norway
[4] Norwegian Radium Hosp, Dept Oncol, N-0310 Oslo, Norway
[5] Norwegian Radium Hosp, Clin Res Off, N-0310 Oslo, Norway
[6] Haukeland Hosp, Dept Oncol, N-5021 Bergen, Norway